kyuubi/docs/quick_start/quick_start_with_jdbc.md
Cheng Pan 19150ca292
[KYUUBI #951] [LICENSE] Add license header on all docs
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Closes #951 from pan3793/license.

Closes #951

4629eecd [Cheng Pan] Fix
c45a0784 [Cheng Pan] nit
b9a46b42 [Cheng Pan] pin license header at first line
80d1a71b [Cheng Pan] nit
b2a46e4c [Cheng Pan] Update
f6acaaf8 [Cheng Pan] minor
ef99183f [Cheng Pan] Add license header on all docs

Authored-by: Cheng Pan <chengpan@apache.org>
Signed-off-by: Cheng Pan <chengpan@apache.org>
(cherry picked from commit a76c344042)
Signed-off-by: Cheng Pan <chengpan@apache.org>
2021-08-19 09:54:01 +08:00

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<div align=center>
![](../imgs/kyuubi_logo.png)
</div>
# Getting Started With Hive JDBC
## How to install JDBC driver
Kyuubi JDBC driver is fully compatible with the 2.3.* version of hive JDBC driver, so we reuse hive JDBC driver to connect to Kyuubi server.
Add repository to your maven configuration file which may reside in `$MAVEN_HOME/conf/settings.xml`.
```xml
<repositories>
<repository>
<id>central maven repo</id>
<name>central maven repo https</name>
<url>https://repo.maven.apache.org/maven2</url>
</repository>
<repositories>
```
You can add below dependency to your `pom.xml` file in your application.
```xml
<!-- https://mvnrepository.com/artifact/org.apache.hive/hive-jdbc -->
<dependency>
<groupId>org.apache.hive</groupId>
<artifactId>hive-jdbc</artifactId>
<version>2.3.7</version>
</dependency>
<dependency>
<groupId>org.apache.hadoop</groupId>
<artifactId>hadoop-common</artifactId>
<!-- keep consistent with the build hadoop version -->
<version>2.7.4</version>
</dependency>
```
## Use JDBC driver with kerberos
The below java code is using a keytab file to login and connect to Kyuubi server by JDBC.
```java
package org.apache.kyuubi.examples;
import java.io.IOException;
import java.security.PrivilegedExceptionAction;
import java.sql.*;
import org.apache.hadoop.security.UserGroupInformation;
public class JDBCTest {
private static String driverName = "org.apache.hive.jdbc.HiveDriver";
private static String kyuubiJdbcUrl = "jdbc:hive2://localhost:10009/default;";
public static void main(String[] args) throws ClassNotFoundException, SQLException {
String principal = args[0]; // kerberos principal
String keytab = args[1]; // keytab file location
Configuration configuration = new Configuration();
configuration.set(HADOOP_SECURITY_AUTHENTICATION, "kerberos");
UserGroupInformation.setConfiguration(configuration);
UserGroupInformation ugi = UserGroupInformation.loginUserFromKeytabAndReturnUGI(principal, keytab);
Class.forName(driverName);
Connection conn = ugi.doAs(new PrivilegedExceptionAction<Connection>(){
public Connection run() throws SQLException {
return DriverManager.getConnection(kyuubiJdbcUrl);
}
});
Statement st = conn.createStatement();
ResultSet res = st.executeQuery("show databases");
while (res.next()) {
System.out.println(res.getString(1));
}
res.close();
st.close();
conn.close();
}
}
```